
where \(\varepsilon ^{y}=\epsilon _{x^{2}-y^{2}}\)  is the projection of the strain field onto the \(B_{1g}\)  channel. This coupling is crucial to explain the finite Kerr signal observed in Ref. [1]}, as it allows one to train different regions of broken time-reversal symmetry with a magnetic field. The condition of a broken vertical mirror symmetry to achieve a finite Kerr signal is naturally fulfilled near the dislocation.
